<?php
/**
 * 工具类
 * 
 * @author river_he@eueang.com
 */
final class Kit_Util {
	/**
	 * 时间戳
	 *
	 * @var int
	 */
	private static $_timestamp = 0;

	/**
	 * 获取时间戳
	 *
	 * @return int
	 */
	public static function getTimeStamp(){
		if(self::$_timestamp == 0){
			self::$_timestamp = time();
		}
		return self::$_timestamp;
	}
}